大约有 45,000 项符合查询结果（耗时：0.0558秒） [XML]
How to get a complete list of object's methods and attributes?
...>> dir__(pyrenderdoc) Traceback (most recent call last): File "<string>", line 1, in <module> NameError: name '__dir' is not defined
– Mona Jalal
Dec 30 '16 at 1:28
...
What is the difference between quiet NaN and signaling NaN?
...t out the NaN raw bytes:
main.cpp
#include <cassert>
#include <cstring>
#include <cmath> // nanf, isnan
#include <iostream>
#include <limits> // std::numeric_limits
#pragma STDC FENV_ACCESS ON
void print_float(float f) {
std::uint32_t i;
std::memcpy(&i, ...
Can I create a named default constraint in an add column statement in SQL Server?
...
ID INT IDENTITY NOT NULL CONSTRAINT PK_TestTable PRIMARY KEY
--let the string be unique (results in a unique index implicitly)
,SomeUniqueString VARCHAR(100) NOT NULL CONSTRAINT UQ_TestTable_SomeUniqueString UNIQUE
--define two constraints, one for a default value and one for a value check
,So...
Why does Math.round(0.49999999999999994) return 1?
....printf("%016x\n", Double.doubleToLongBits(d));
}
public static void main(String args[]) {
double a = 0.5;
double b = 0.49999999999999994;
print(a); // 3fe0000000000000
print(b); // 3fdfffffffffffff
print(a+b); // 3ff0000000000000
print(1.0); // 3ff000000000...
AngularJS : ng-model binding not updating when changed with jQuery
...
AngularJS pass string, numbers and booleans by value while it passes arrays and objects by reference. So you can create an empty object and make your date a property of that object. In that way angular will detect model changes.
In control...
How to check if APK is signed or “debug build”?
...}
Add this method:
public static boolean isDebug(Context context) {
String pName = context.getPackageName();
if (pName != null && pName.endsWith(".debug")) {
return true;
} else {
return false;
}
}
...
How is OAuth 2 different from OAuth 1?
... API, which didn't require the application to HMAC hash tokens and request strings. With OAuth 2.0, the application can make a request using only the issued token over HTTPS.
OAuth 2.0 signatures are much less complicated. No more special parsing, sorting, or encoding.
OAuth 2.0 Access tokens are...
Pass An Instantiated System.Type as a Type Parameter for a Generic Class
...}", typeof(T));
}
}
class Test
{
static void Main()
{
string typeName = "System.String";
Type typeArgument = Type.GetType(typeName);
Type genericClass = typeof(Generic<>);
// MakeGenericType is badly named
Type constructedClass = genericCla...
Why sizeof int is wrong, while sizeof(int) is right?
... be ambiguous if C++ didnt specify that the new operator takes the longest string that could possibly be a type. So In C++ they could have made the same with sizeof, I guess. But in C++ you can say sizeof int() which then would have been ambiguous (type or value initialized int?).
...
Android Preferences: How to load the default values when the user hasn't used the preferences-screen
...
Be aware that if you are using
getSharedPreferences(String sharedPreferencesName, int sharedPreferencesMode)
to retrieve preferences you have to use
PreferenceManager.setDefaultValues(Context context, String sharedPreferencesName, int sharedPreferencesMode, int resId, boolea...